A loyalty ability is an activated ability
"They are trying to make a quick buck and unfortunately, I think some of those influences have been large, especially when you have the likes of Logan Paul who are saying, 'look how much money these cards are worth'." Wosley compared the buying and selling of Pokmon in this manner to the trading of limited edition trainers
W for a 1/1 (So far, so good.) 2W for a 2/2 (Pearled Unicorn, but not horrible.) 10W for a 5/5 first strike creature (Wait, what?) 1U for a 0/3 (Eh, but bearable.) 3U for a 0/6 (Getting pretty bad here.) 11U for a 6/6 islandwalk creature (Wait, what?) B for a 1/1 (Muck Rats, but okay.) 4B for a 3/3 (Looking a little worse here.) 12B for a 5/5 creature with pseudo-fear (Wait, what?) Those ultimate mana costs were paid out over multiple turns, but if your creature died before hitting their highest level game over, tons of wasted mana, yikes
How Do You Kill Creatures With Hexproof
This is a powerful effect in and of itself, but having access to it makes you a more flexible player
Depending on the state of the battle, you can grab the best strategic option or simply your strongest Pokemon